Spectra/Dyneema

Spectra/Dyneema is an ultra-high molecular weight polyethylene (UHMWPE) fiber used in high-performance outdoor gear and equipment. This synthetic material is prized by backpackers and climbers for being incredibly strong yet lightweight - up to 15 times stronger than steel by weight while remaining buoyant and cut-resistant. It's commonly found in ultralight tent guylines, climbing slings, backpack straps, and rope cores where maximum strength with minimal weight is essential for backcountry applications.